#define ISZERO(x) (fabsl(x) < 1e-100)
#define SWAPI(x, y) {x = x ^ y; y = x ^ y; x = x ^ y;}
#define ROUND(x) floorl(x + 0.5 + 1e-100)

char *ftoa(long double x);
void ftoa(long double x, char *buffer, int nrzec);
void ITOA(int x, char *buffer);
char *eliminaSpatiile(char *string);
char *cpystr(char *string1);
